Find the square root if it is a real number. If it is not a real number, state so.
A. not a real number
B. -264
C. 23
D. -23
Answer: A
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Find the intersection.x + y + z = 5, x + y = -3
A. x = -t, y = -3 + t, z = 8 B. x = -1, y = 1 - 3t, z = 8t C. x = t, y = -3 - t, z = 8 D. x = -t, y = -3 + t, z = -8
Find the x-intercept and the y-intercept of the graph of the equation. Do not graph the equation.6x - 2y = -4
A. x-intercept = 
; y-intercept = 2
B. x-intercept = - 
; y-intercept = -2
C. x-intercept = 2; y-intercept = - 
D. x-intercept = - 
; y-intercept = 2
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2; r = 6, ? = 3.14
A. A = 9.14 B. A = 59.16 C. A = 113.04 D. A = 18.84
Write a general formula to describe the variation.The surface area S of a right circular cone varies directly as the radius r times the square root of the sum of the squares of the base radius r and the height h. The constant of proportionality is ?.
A. S = ?r
B. S = ?r
C. S = ?
D. S = ?r